[ExI] Why the reaction wheels on Kepler failed?

[Dan TheBookMan]

On Aug 23, 2018, at 7:56 AM, Henrique Moraes Mechado (CI) <cetico.iconoclasta at gmail.com> wrote:
> 
> Scott Manley made a video about it very recently
> 
> https://www.youtube.com/watch?v=KibT-PEMHUU

So switching to ceramic bearings seems to have solved the problem. I wonder if there’s any downside to that. Thanks!

Regards,

Dan
   Sample my Kindle books at:
http://author.to/DanUst
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